Which drugs compose Regimen 4 (SLOR FQ-S)?

Regimen 4, also known as SLOR FQ-S, is specifically designed for treating certain forms of drug-resistant tuberculosis (TB), particularly when using effective second-line drugs. This regimen typically involves the combination of drugs over the course of six months, which allows for adequate treatment duration to combat the complexities associated with resistant TB strains.

The correct composition of this regimen includes Levofloxacin (Lfx), Bedaquiline (Bdq), Linezolid (Lzd), and Clofazimine (Cfz), administered for a total period of six months. The choice of duration and drug selection is critical for achieving the best possible outcomes, as it ensures that the therapy is both effective in eradicating the bacteria and manageable in terms of potential side effects.

The other choices refer to either different drug combinations or altered durations that do not align with the established guidelines for Regimen 4. Therefore, they do not accurately reflect the standard treatment approach, which is firmly based on the recommended regimen for managing drug-resistant TB cases.